November 2014 - Users - oVirt List Archives

Re: [ovirt-users] Ubuntu/Debian support?
by mots 17 Nov '14

17 Nov '14

------=_Part_34_1227848300.1416224045438 Content-Type: multipart/alternative; boundary="=_+Otqq-T6StBlXf0y-elLOXdNu7e2jnb9B-i7zCL8lNPcQ1vL" This is a multi-part message in MIME format. Your mail reader does not understand MIME message format. --=_+Otqq-T6StBlXf0y-elLOXdNu7e2jnb9B-i7zCL8lNPcQ1vL Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hello,=0D=0A=0D=0A1) I hope this is still an issue, mostly because I woul= d really love to use mandos[1] on the engine, and that only works with De= bian/Ubuntu.=0D=0A2) Can't comment on, I'm just a user, after all.=0D=0A3= ) Can't comment on, I'm just a user, after all.=0D=0A4) Debian GNU/Linux = has things in its standard repositories that are useful for very small sy= stems. Examples: drbd and the pacemaker resource agent for iSCSI.=0D=0A5)= See 1)=0D=0A6) Debian, mostly because of personal preferrence.=0D=0A7) E= ngine, I think it would be useful for more users because of mandos.=0D=0A= =0D=0A[1]https://wiki.recompile.se/wiki/Mandos=0D=0A=0D=0ARegards,=0D=0A=0D= =0Amots=0D=0A=0D=0A=0D=0A-----Urspr=C3=BCngliche Nachricht-----=0D=0A> Vo= n:Itamar Heim <iheim(a)redhat.com <mailto:iheim@redhat.com> >=0D=0A> Gesend= et: Mon 17 November 2014 11:00=0D=0A> An: users(a)ovirt.org <mailto:users@o= virt.org>=20=0D=0A> Betreff: [ovirt-users] Ubuntu/Debian support=3F=0D=0A= >=20=0D=0A> So, a quick non-scientific poll...=0D=0A>=20=0D=0A> Motivatio= n: It has been suggested that adding ubuntu or debian distro=20=0D=0A> su= pport could broaden the reach of the oVirt community.=0D=0A> To date, the= re has been some work towards this goal, but it is not=20=0D=0A> "coming = to a conclusion".=0D=0A>=20=0D=0A> Questions that comes to mind:=0D=0A>=20= =0D=0A> 1) Is this still an issue=3F=0D=0A> 2) Can we afford to dilute th= e focus we have as it is hard enough to=0D=0A> stabilize the currentl= y supported distro's=3F is it worth the=0D=0A> potential impact=3F=0D= =0A> 3) Would it have maintainers catering to it so it won't be left behi= nd=0D=0A> / delay development=3F=0D=0A> 4) Why bother with host suppo= rt, ovirt-node can be used=3F=0D=0A> 5) Why bother with engine support, a= virtual appliance or a docker=0D=0A> image could be used=3F=0D=0A> 6= ) if we do it, should we focus on Ubuntu or Debian distro first=3F=0D=0A>= 7) if we do it, should we focus on host or engine first=3F=0D=0A>=20=0D=0A= > Thoughts=3F=0D=0A>=20=0D=0A> Thanks,=0D=0A> Itamar=0D=0A> _________= ______________________________________=0D=0A> Users mailing list=0D=0A> U= sers(a)ovirt.org <mailto:Users@ovirt.org>=20=0D=0A> http://lists.ovirt.org/= mailman/listinfo/users <http://lists.ovirt.org/mailman/listinfo/users>=20= =0D=0A>=20=0D=0A=0D=0A --=_+Otqq-T6StBlXf0y-elLOXdNu7e2jnb9B-i7zCL8lNPcQ1vL Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable =0D=0A<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "htt= p://www.w3.org/TR/html4/loose.dtd"><html>=0D=0A<head>=0D=0A <meta name=3D= "Generator" content=3D"Zarafa WebApp v7.1.10-44973">=0D=0A <meta http-eq= uiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8">=0D=0A <titl= e>AW: [ovirt-users] Ubuntu/Debian support=3F</title>=0D=0A</head>=0D=0A<b= ody>=0D=0AHello, 1) I hope= this is still an issue, mostly because I would really love to use mandos= [1] on the engine, and that only works with Debian/Ubuntu. 2) Can't co= mment on, I'm just a user, after all. 3) Can't comment on, I'm just a = user, after all. 4) Debian GNU/Linux has things in its standard reposi= tories that are useful for very small systems. Examples: drbd and the pac= emaker resource agent for iSCSI. 5) See 1) 6) Debian, mostly becaus= e of personal preferrence. 7) Engine, I think it would be useful for m= ore users because of mandos. [1]https://wiki.recompile.se/wiki/Man= dos Regards, mots <pre style=3D"white-space: -moz-pre-wr= ap; white-space: -pre-wrap; white-space: -o-pre-wrap; white-space: pre-wr= ap; word-wrap: break-word;" wrap=3D""> -----Urspr=C3=BCngliche Nachric= ht----- > Von:Itamar Heim <<a href=3D"mailto:iheim@redhat.com">i= heim(a)redhat.com</a>> > Gesendet: Mon 17 November 2014 11:00 &= gt; An: <a href=3D"mailto:users@ovirt.org">users(a)ovirt.org</a> > Be= treff: [ovirt-users] Ubuntu/Debian support=3F > > So, a quic= k non-scientific poll... > > Motivation: It has been suggest= ed that adding ubuntu or debian distro > support could broaden the= reach of the oVirt community. > To date, there has been some work = towards this goal, but it is not > "coming to a conclusion". &g= t; > Questions that comes to mind: > > 1) Is this sti= ll an issue=3F > 2) Can we afford to dilute the focus we have as it= is hard enough to > stabilize the currently supported distro's= =3F is it worth the > potential impact=3F > 3) Would it h= ave maintainers catering to it so it won't be left behind > / d= elay development=3F > 4) Why bother with host support, ovirt-node c= an be used=3F > 5) Why bother with engine support, a virtual applia= nce or a docker > image could be used=3F > 6) if we do it= , should we focus on Ubuntu or Debian distro first=3F > 7) if we do= it, should we focus on host or engine first=3F > > Thoughts= =3F > > Thanks, > Itamar > _________________= ______________________________ > Users mailing list > <a href= =3D"mailto:Users@ovirt.org">Users(a)ovirt.org</a> > <a href=3D"http:/= /lists.ovirt.org/mailman/listinfo/users" target=3D"_blank">http://lists.o= virt.org/mailman/listinfo/users</a> > </pre>=0D=0A</body>=0D=0A</ht= ml> --=_+Otqq-T6StBlXf0y-elLOXdNu7e2jnb9B-i7zCL8lNPcQ1vL-- ------=_Part_34_1227848300.1416224045438 Content-Type: application/pgp-signature; name=signature.asc Content-Transfer-Encoding: 7bit Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: CIPHERMAIL (2.8.6-4) iQEcBAEBCAAGBQJUad0tAAoJELfzdzVzTtoKvOwH/j7P6NuwxvwnIqquoHYADzyn 36sPwzS2gDKn5+8wzuij7tvBlIyTf2lR2QyFDao2Xyn9Xh7KX3gp+mQLftxiVIdR TUCjmL4mSh0oevCLBQ+JK5ozhB6wwL0bvhqcwFuKMzX/ldyGLYGOp7wCM2jMqLwk s1VBH47S+p+rrW4BR06syDqL1ZtAXxznUTq0VnTaLBNAyEfbAOYTHFvAr3DuUrXT sD7BfKlISg91rndz802iYCoRkwyfJ5XTsEjIZk9kZTDeVjlQkqVB5516w4AT9ysk vo9yGvvfGyqAuxjsqDgTMLC2VHJ8DCKRG1FjNPcvVLtatkwXtBh/LOzPVmL5h14= =EBOU -----END PGP SIGNATURE----- ------=_Part_34_1227848300.1416224045438--

1 0

Fake power management?
by mots 17 Nov '14

17 Nov '14

------=_Part_24_2062496813.1415976955949 Content-Type: multipart/alternative; boundary="=_guxpNXeBU0NQ8OsPUiLb8M5NU4xt8e7pVmeTMitrhXCFoJlJ" This is a multi-part message in MIME format. Your mail reader does not understand MIME message format. --=_guxpNXeBU0NQ8OsPUiLb8M5NU4xt8e7pVmeTMitrhXCFoJlJ Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hello,=0D=0A=0D=0AI'm building a small demonstration system for our sales= team to take to a customer so that they can show them our solutions.=20=0D= =0AHardware: Two Intel NUC's, a 4 port switch and a laptop.=0D=0AEngine: = Runs as a VM on one of the NUCs, which one it runs on is determined by pa= cemaker.=0D=0AStorage: Also managed by pacemaker, it's drbd backed and ac= cessed with iscsi.=0D=0AoVirt version: 3.5=0D=0AOS: CentOS 6.6=0D=0A=0D=0A= The idea is to have our sales representative (or the potential customer h= imself) randomly pull the plug on one of the NUCs to show that the system= stays operational when part of the hardware fails.=0D=0AMy problem is th= at I don't have any way to implement power management, so the Engine can'= t fence nodes and won't restart guests that were running on the node whic= h lost power. In pacemaker I can just configure fencing over SSH or even = disable the requirement to do so completely. Is there something similar f= or oVirt, so that the Engine will consider a node which it can't connect = to to be powered down=3F=0D=0A=0D=0ARegards,=0D=0A=0D=0Amots=0D=0A --=_guxpNXeBU0NQ8OsPUiLb8M5NU4xt8e7pVmeTMitrhXCFoJlJ Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable =0D=0A<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "htt= p://www.w3.org/TR/html4/loose.dtd"><html>=0D=0A<head>=0D=0A <meta name=3D= "Generator" content=3D"Zarafa WebApp v7.1.10-44973">=0D=0A <meta http-eq= uiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8">=0D=0A <titl= e>Fake power management=3F</title>=0D=0A</head>=0D=0A<body>=0D=0AHello, I'm building a small demonstration= system for our sales team to take to a customer so that they can show th= em our solutions. Hardware: Two Intel NUC's, a 4 port switch and a la= ptop. Engine: Runs as a VM on one of the NUCs, which one it runs on is= determined by pacemaker. Storage: Also managed by pacemaker, it's drb= d backed and accessed with iscsi. oVirt version: 3.5 OS: CentOS 6.6= The idea is to have our sales representative (or the potential cu= stomer himself) randomly pull the plug on one of the NUCs to show that th= e system stays operational when part of the hardware fails. My problem= is that I don't have any way to implement power management, so the Engin= e can't fence nodes and won't restart guests that were running on the nod= e which lost power. In pacemaker I can just configure fencing over SSH or= even disable the requirement to do so completely. Is there something sim= ilar for oVirt, so that the Engine will consider a node which it can't co= nnect to to be powered down=3F Regards, mots =0D=0A= </body>=0D=0A</html> --=_guxpNXeBU0NQ8OsPUiLb8M5NU4xt8e7pVmeTMitrhXCFoJlJ-- ------=_Part_24_2062496813.1415976955949 Content-Type: application/pgp-signature; name=signature.asc Content-Transfer-Encoding: 7bit Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: CIPHERMAIL (2.8.6-4) iQEcBAEBCAAGBQJUZhf7AAoJELfzdzVzTtoK5+gH/0ImEE6PmTvdHBYohT3KcdGc 5k4nCOYW/lZxVmT6w15Dkd0xMm/5v7BX52sn6GyXxq5JYbzRaz+wEz5WaTJma46N R9Rd659xWJz6gofjsGZRLzRM0/RLSiX65l0s1XzBlsmwtx2S9yVK0liSKJSeQEiV 9y9sTQj9HHTg3abyPYGWr86VNtUCwTYY6Ln1i/FxvSeJi/C3Ltlc27BBOHc1anrn fXBdLZCm5WZxpw3Np1mWqWKEN+8ZF+P88PhdJBBY2TljpPcpyCbVdzaKwyrZ7ZNV rmCjpMN72dpvbhTM7fUjiF+/LFB0yAnt1RGcEcBXlLR7OnKaYuuvIME0FU7r/Bg= =OgRe -----END PGP SIGNATURE----- ------=_Part_24_2062496813.1415976955949--

4 3

hosted engine , how to make changes to the VM post deploy
by Alastair Neil 17 Nov '14

17 Nov '14

I have successfully migrated my standalone ovirt into a hosted instance. I have some questions and comments. Is there a mechanism to make changes to the hosted engine VM post deploy. I would like to change some of the VM configuration choices. I tried setting the maintenance mode to "global" and then editing: /etc/ovirt-hosted-engine/vm.conf I changed something simple: the VM name. Then I copied the file to the two other HA hosts and set the maintenance mode to "none". No joy the VM hostname remains unchanged in the portal. Also, the notification system is horrendously spammy, I get email notification of each state change from each of the HA hosts, surely this is not intentional. Is there some way to control this? -Thanks, Alastair

4 8

Which machine provides the computing power for the clients?
by Harald Wolf 17 Nov '14

17 Nov '14

------NHN1TB6Y8CG0RP2OD5SIM27NYUUUFA Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi, im not sure if understand the oVirt concept right=2E Is the oVirt node = hypervisor the machine that provides the computing power for the client con= soles (User Applications)? Is the VM running on the node Hypervisor? Can i use 1 PC for the complete oVirt environment + the consoles? --=20 Diese Nachricht wurde von meinem Android-Mobiltelefon mit K-9 Mail gesende= t=2E ------NHN1TB6Y8CG0RP2OD5SIM27NYUUUFA Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi, im not sure if understand the oVirt concept right=2E Is the oVirt node = hypervisor the machine that provides the computing power for the client con= soles (User Applications)? Is the VM running on the node Hypervisor? Can i use 1 PC for the complete oVirt environment + the consoles? -- Diese Nachricht wurde von meinem Android-Mobiltelefon mit K-9 Mail gesende= t=2E ------NHN1TB6Y8CG0RP2OD5SIM27NYUUUFA--

3 2

Re: [ovirt-users] Fake power management?
by mots 17 Nov '14

17 Nov '14

------=_Part_28_89981195.1416135341935 Content-Type: multipart/alternative; boundary="=_198qEBTfpHVegONcN73CTkIZxTp38X1-UNdH8FALVPH+LZ7a" This is a multi-part message in MIME format. Your mail reader does not understand MIME message format. --=_198qEBTfpHVegONcN73CTkIZxTp38X1-UNdH8FALVPH+LZ7a Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hello Eli,=0D=0A=0D=0AIf I replace "/usr/bin/vdsm-tool service-restart vd= smd" with "echo b > /proc/sysrc-trigger", will the Engine consider the no= de to be fenced and restart the VMs that were running on it on another no= de=3F I don't see a mechanism to inform the engine that this was a "hard"= fencing operation and that it's save to restart the guests.=0D=0A=20=0D=0A= Regards,=0D=0A=0D=0Amots=0D=0A=C2=A0=0D=0A-----Urspr=C3=BCngliche Nachric= ht-----=0D=0A> Von:Eli Mesika <emesika(a)redhat.com <mailto:emesika@redhat.= com> >=0D=0A> Gesendet: Son 16 November 2014 03:00=0D=0A> An: Patrick Lot= tenbach <pl(a)a-bot.ch <mailto:pl@a-bot.ch> >=0D=0A> CC: users(a)ovirt.org <m= ailto:users@ovirt.org>=20=0D=0A> Betreff: Re: [ovirt-users] Fake power ma= nagement=3F=0D=0A>=20=0D=0A>=20=0D=0A>=20=0D=0A> ----- Original Message -= ----=0D=0A> > From: "Sandro Bonazzola" <sbonazzo(a)redhat.com <mailto:sbona= zzo(a)redhat.com> >=0D=0A> > To: "mots" <mots(a)nepu.moe <mailto:mots@nepu.mo= e> >, users(a)ovirt.org <mailto:users@ovirt.org>=20=0D=0A> > Sent: Friday, = November 14, 2014 5:15:25 PM=0D=0A> > Subject: Re: [ovirt-users] Fake pow= er management=3F=0D=0A> >=20=0D=0A> > Il 14/11/2014 15:54, mots ha scritt= o:=0D=0A> > > Hello,=0D=0A> > >=20=0D=0A> > > I'm building a small demons= tration system for our sales team to take to a=0D=0A> > > customer so tha= t they can show them our solutions.=0D=0A> > > Hardware: Two Intel NUC's,= a 4 port switch and a laptop.=0D=0A> > > Engine: Runs as a VM on one of = the NUCs, which one it runs on is determined=0D=0A> > > by pacemaker.=0D=0A= > > > Storage: Also managed by pacemaker, it's drbd backed and accessed w= ith=0D=0A> > > iscsi.=0D=0A> > > oVirt version: 3.5=0D=0A> > > OS: CentOS= 6.6=0D=0A> >=20=0D=0A> > Just for curiosity, any reason for using pacema= ker instead on oVirt Hosted=0D=0A> > Engine solution=3F=0D=0A> >=20=0D=0A= > > >=20=0D=0A> > > The idea is to have our sales representative (or the = potential customer=0D=0A> > > himself) randomly pull the plug on one of t= he NUCs to show that the system=0D=0A> > > stays operational when part of= the hardware fails.=0D=0A> > > My problem is that I don't have any way t= o implement power management, so=0D=0A> > > the Engine can't fence nodes = and won't restart guests that were running on=0D=0A> > > the node which l= ost power. In pacemaker I can just configure fencing over=0D=0A> > > SSH = or even disable the requirement to do so completely. Is there=0D=0A> > > = something=0D=0A> > > similar for oVirt, so that the Engine will consider = a node which it can't=0D=0A> > > connect to to be powered down=3F=0D=0A>=20= =0D=0A> Well, we are thinking of adding such ability (Fake power manageme= nt) mainly for testing purpose...=0D=0A> Meanwhile, I think I have a work= -around that may help you.=0D=0A>=20=0D=0A> When we have a connectivity i= ssue with a node, we first try (after a grace period) to restart its VDSM= via SSH=20=0D=0A> this is always done before the hard-fencing (restart v= ia the PM card) and can be done no matter if the host has PM configured o= r not.=0D=0A> So basically when a connectivity issue is found, you can cu= stom the SSH command that restarts VDSM to do whatever you want, even a s= cript or a power-down command=20=0D=0A>=20=0D=0A> look at the result of=20= =0D=0A>=20=0D=0A> > psql -U engine -c "select * from vdc_options where o= ption_name ilike 'SshSoftFencingCommand'" engine=0D=0A>=20=0D=0A> optio= n_id | option_name | option_value |= version=0D=0A> -----------+-----------------------+---------------------= ---------------------+---------=0D=0A> 558 | SshSoftFencingCommand= | service vdsmd restart | 3.0=0D=0A> 559 | Ssh= SoftFencingCommand | service vdsmd restart | 3.1=0D=0A= > 560 | SshSoftFencingCommand | service vdsmd restart = | 3.2=0D=0A> 561 | SshSoftFencingCommand | /usr/bin/vdsm-to= ol service-restart vdsmd | 3.3=0D=0A> 562 | SshSoftFencingCommand = | /usr/bin/vdsm-tool service-restart vdsmd | 3.4=0D=0A> 563 | SshS= oftFencingCommand | /usr/bin/vdsm-tool service-restart vdsmd | 3.5=0D=0A>= =20=0D=0A>=20=0D=0A> Please note:=0D=0A>=20=0D=0A> 1) change only the val= ue that match your cluster version=0D=0A> 2) restart engine so change can= take place=20=0D=0A> 3) restore to default value again after you are don= e=20=0D=0A>=20=0D=0A> Does this may be useful for you =3F=0D=0A>=20=0D=0A= >=20=0D=0A>=20=0D=0A> > >=20=0D=0A> > > Regards,=0D=0A> > >=20=0D=0A> > >= mots=0D=0A> > >=20=0D=0A> > >=20=0D=0A> > > ____________________________= ___________________=0D=0A> > > Users mailing list=0D=0A> > > Users(a)ovirt.= org <mailto:Users@ovirt.org>=20=0D=0A> > > http://lists.ovirt.org/mailman= /listinfo/users <http://lists.ovirt.org/mailman/listinfo/users>=20=0D=0A>= > >=20=0D=0A> >=20=0D=0A> >=20=0D=0A> > --=0D=0A> > Sandro Bonazzola=0D=0A= > > Better technology. Faster innovation. Powered by community collaborat= ion.=0D=0A> > See how it works at redhat.com=0D=0A> > ___________________= ____________________________=0D=0A> > Users mailing list=0D=0A> > Users@o= virt.org <mailto:Users@ovirt.org>=20=0D=0A> > http://lists.ovirt.org/mail= man/listinfo/users <http://lists.ovirt.org/mailman/listinfo/users>=20=0D=0A= > >=20=0D=0A>=20=0D=0A=0D=0A --=_198qEBTfpHVegONcN73CTkIZxTp38X1-UNdH8FALVPH+LZ7a Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://ww= w.w3.org/TR/html4/loose.dtd"><html>=0A<head>=0A <meta name=3D"Generator"= content=3D"Zarafa WebApp v7.1.10-44973">=0A <meta http-equiv=3D"Content= -Type" content=3D"text/html; charset=3Dutf-8">=0A <title>AW: [ovirt-user= s] Fake power management=3F</title>=0A</head>=0A<body>=0A<pre style=3D"wh= ite-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wra= p; white-space: pre-wrap; word-wrap: break-word;" wrap=3D"">Hello Eli,<br= > If I replace "/usr/bin/vdsm-tool service-restart vdsmd" with "echo b= > /proc/sysrc-trigger", will the Engine consider the node to be fence= d and restart the VMs that were running on it on another node=3F I don't = see a mechanism to inform the engine that this was a "hard" fencing opera= tion and that it's save to restart the guests. Regards, mo= ts   -----Urspr=C3=BCngliche Nachricht----- > Von:Eli Me= sika <<a href=3D"mailto:emesika@redhat.com">emesika(a)redhat.com</a>>= > Gesendet: Son 16 November 2014 03:00 > An: Patrick Lottenb= ach <<a href=3D"mailto:pl@a-bot.ch">pl(a)a-bot.ch</a>> > CC: <a= href=3D"mailto:users@ovirt.org">users(a)ovirt.org</a> > Betreff: Re:= [ovirt-users] Fake power management=3F > > > &gt= ; ----- Original Message ----- > > From: "Sandro Bonazzola" <= <a href=3D"mailto:sbonazzo@redhat.com">sbonazzo(a)redhat.com</a>> &gt= ; > To: "mots" <<a href=3D"mailto:mots@nepu.moe">mots(a)nepu.moe</a>&= gt;, <a href=3D"mailto:users@ovirt.org">users(a)ovirt.org</a> > > = Sent: Friday, November 14, 2014 5:15:25 PM > > Subject: Re: [ovi= rt-users] Fake power management=3F > > > > Il 14/11/20= 14 15:54, mots ha scritto: > > > Hello, > > > <br= >> > > I'm building a small demonstration system for our sales t= eam to take to a > > > customer so that they can show them ou= r solutions. > > > Hardware: Two Intel NUC's, a 4 port switch= and a laptop. > > > Engine: Runs as a VM on one of the NUCs,= which one it runs on is determined > > > by pacemaker. &g= t; > > Storage: Also managed by pacemaker, it's drbd backed and acc= essed with > > > iscsi. > > > oVirt version: 3.5<= br>> > > OS: CentOS 6.6 > > > > Just for curi= osity, any reason for using pacemaker instead on oVirt Hosted > &gt= ; Engine solution=3F > > > > > > > > T= he idea is to have our sales representative (or the potential customer<br= >> > > himself) randomly pull the plug on one of the NUCs to sho= w that the system > > > stays operational when part of the ha= rdware fails. > > > My problem is that I don't have any way t= o implement power management, so > > > the Engine can't fence= nodes and won't restart guests that were running on > > > th= e node which lost power. In pacemaker I can just configure fencing over<b= r>> > > SSH or even disable the requirement to do so completely.= Is there > > > something > > > similar for oVirt= , so that the Engine will consider a node which it can't > > &gt= ; connect to to be powered down=3F > > Well, we are thinking= of adding such ability (Fake power management) mainly for testing purpos= e... > Meanwhile, I think I have a work-around that may help you.<b= r>> > When we have a connectivity issue with a node, we first t= ry (after a grace period) to restart its VDSM via SSH > this is al= ways done before the hard-fencing (restart via the PM card) and can be do= ne no matter if the host has PM configured or not. > So basically w= hen a connectivity issue is found, you can custom the SSH command that re= starts VDSM to do whatever you want, even a script or a power-down comman= d > > look at the result of > > > psql -U = engine -c "select * from vdc_options where option_name ilike 'SshSoftFe= ncingCommand'" engine > > option_id | option_name = | option_value | version > -----------= +-----------------------+------------------------------------------+-----= ---- > 558 | SshSoftFencingCommand | service vdsmd restart = | 3.0 > 559 | SshSoftFencingCommand | serv= ice vdsmd restart | 3.1 > 560 | SshSoftFe= ncingCommand | service vdsmd restart | 3.2 > = 561 | SshSoftFencingCommand | /usr/bin/vdsm-tool service-restart vdsm= d | 3.3 > 562 | SshSoftFencingCommand | /usr/bin/vdsm-tool s= ervice-restart vdsmd | 3.4 > 563 | SshSoftFencingCommand | /= usr/bin/vdsm-tool service-restart vdsmd | 3.5 > > > P= lease note: > > 1) change only the value that match your clu= ster version > 2) restart engine so change can take place > = 3) restore to default value again after you are done > > Do= es this may be useful for you =3F > > > > >= > > > > Regards, > > > > > > mo= ts > > > > > > > > > ______________= _________________________________ > > > Users mailing list<br= >> > > <a href=3D"mailto:Users@ovirt.org">Users(a)ovirt.org</a><br= >> > > <a href=3D"http://lists.ovirt.org/mailman/listinfo/users"= target=3D"_blank">http://lists.ovirt.org/mailman/listinfo/users</a> &= gt; > > > > > > > > -- > > S= andro Bonazzola > > Better technology. Faster innovation. Powere= d by community collaboration. > > See how it works at redhat.com= > > _______________________________________________ > &gt= ; Users mailing list > > <a href=3D"mailto:Users@ovirt.org">User= s(a)ovirt.org</a> > > <a href=3D"http://lists.ovirt.org/mailman/li= stinfo/users" target=3D"_blank">http://lists.ovirt.org/mailman/listinfo/u= sers</a> > > > </pre>=0A</body>=0A</html> --=_198qEBTfpHVegONcN73CTkIZxTp38X1-UNdH8FALVPH+LZ7a-- ------=_Part_28_89981195.1416135341935 Content-Type: application/pgp-signature; name=signature.asc Content-Transfer-Encoding: 7bit Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: CIPHERMAIL (2.8.6-4) iQEcBAEBCAAGBQJUaIKtAAoJELfzdzVzTtoKz3QH/iNvmHQV9aJIwJTQDetgWXhU ju72gR6a4CLyEQdx8hNSwpgxtVHibFTmkkiIR5usnRGAFRfI+hSmZ95qDKgV3BLw pZjRrZd+ryMkrn5D4RocJlX9DO0BfE+9vmfEnmSd579DTwZMPQUUWn20hck8yO+1 crKj096PBx0wCf5i9XTymCx/Zx96SFiLllFyn7z/zEUtlNsLk405iI6PWKfYrv8H kj5Q0Jn9fB1DyN9vROJOS7Mrrl149/MNMv4zRZFOE5yLffZfXEJe6WaGVEfhJkq7 kmv4Z+x/2H/FqzY3dpwxGycpsvPkl+jeVYoG1wZCVxQKTto3FAmsO396/L5awkE= =1WB6 -----END PGP SIGNATURE----- ------=_Part_28_89981195.1416135341935--

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Latest ovirt-node release/installation
by Christopher Young 17 Nov '14

17 Nov '14

I sincerely hope that this is not answered elsewhere as I've done several searches and have yet to find a solid answer. I have three (what I believe to be) basic questions (with perhaps some subs there): 1) What is the latest oVirt-node release and where would one download it (I appear to only see 3.4 -based releases of the ISO available)? It is 3.5-based and/or is there an upgrade path? Which glusterfs release is currently included with oVirt-node? 2) As I understand it, newer releases of oVirt-node allow you to do an installation of the self-hosted engine at this time. Is that correct? 3) Is there any functionality that one would be losing out on by deploying oVirt via oVirt-node vs. using full-OS installation? Which is the more recommended? Again, I apologize if these questions are covered somewhere, but I felt like asking them in a direct fashion so as to clear up my own ignorance. I appreciate any feedback and information that you could share. Thanks, Chris

4 7

Migrating from Fedora 19 to Fedora 20 with oVirt 3.5.0
by Sandro Bonazzola 17 Nov '14

17 Nov '14

Hi, just finished testing migration path from F19 to F20 for systems running oVirt. F19 is going EOL one month after F21 release which is currently planned for December 2nd. If you're running oVirt on Fedora 19 I suggest you to do it once finished to upgrade oVirt to 3.5.0. I've saved some notes in the test request bug[1]: Bug 1131828 - Test upgrade path from Fedora 19 with oVirt 3.5.z to Fedora 20 Enjoy! [1] https://bugzilla.redhat.com/show_bug.cgi?id=1131828 -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

2 6

noVNC
by Phil Daws 16 Nov '14

16 Nov '14

Hi: I have my VDSM service and engine up and running now am trying to create a VM. As my client machine is Windows 8.1 Pro I am trying to use noVNC to connect. Am not using a self signed SSL cert but every time I try and connect it says "connect timeout". Port on the engine is listening fine: tcp 0 0 0.0.0.0:6100 0.0.0.0:* LISTEN 1964/python What could I be doing wrong please ? Thanks, Phil

3 3

Network rules
by Jürgen Brandl 16 Nov '14

16 Nov '14

Hello, I'm new, so forgive me if this is stupid or in the wrong place. Because of security reasons, I want a network, where my VMs can talk to one single VM (eg. proxy or management), but not with each other or the host machine. Is there a simple way to solve this, without creating dozens of networks? Jürgen

2 1

Mail in spam folder ...
by Gianluca Cecchi 15 Nov '14

15 Nov '14

Hello, it happened some months ago yet. It is some days that I'm receiving many list mails automatically put by gmail filter into spam folder... Gianluca

4 4